Spike assembly for a spiked shoes

ABSTRACT

A spike assembly has a spike and spike connector. The spike connector has multiple threads formed on an inner surface. The multiple threads include a specific thread has a width larger than that of the others. The spike has multiple grooves formed in an outer surface. The multiple grooves include a specific groove having a depth deeper than that of the others and corresponding to the width of the specific thread on the spike connector. Accordingly, the spike is easily connected with the spike connect at a specific orientation, and to assemble the spike assembly is convenient.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a spike assembly, and more particularlyto a spike assembly having a spike and a spike connector and firmlyattached together in a desired orientation.

2. Description of Related Art

Shoes are provided to keep warm and a protection effect to feet of usersand are designed to different types, such as sport shoes, mountaineeringboots or spiked shoes.

To increase friction between shoes and ground, multiple spikes arealways mounted on a bottom of a shoe. With reference to FIG.7, aconventional spiked shoe in accordance with the prior art comprises asole (30) and multiple spikes (31). The spikes (31) are formed on andextend down from the sole (30) at different orientations. With thespikes (31) extending toward different orientations, the spiked shoe isable to provide more friction to effectively accelerate a person whowearing the spiked shoes.

However, the spikes are integrally formed on the sole (30) by aninjection molding process and are not replaceable. If anyone spike (31)is damaged or broken, the spiked shoe can't be used anymore.

With reference to FIG. 8, a conventional spiked shoes with replaceablespikes substantially comprises a sole (40) and multiple spikes (41). Thesole (40) has multiple threaded holes (42) defined in the sole (40).Each spike is attached to one of the threaded holes (42) and has abottom end and a top end. The bottom end has a tip for inserting intothe ground to increase friction, and the top end has a threaded stub(410) to screw into the corresponding threaded hole to mount the spikeon the sole (40). Such that the spikes (41) are detachable, the spikedshoe is still useful by replacing new spikes (41) when any spike isbroken or damaged.

However, to screw the spikes (41) into the threaded holes (42) in thesole (40) is time-consuming, such that to assemble the conventionalspiked shoe is trouble. In addition, if the spikes (41) are not tightlyscrewed into the threaded holes (42) in the sole (40), the spikes (41)are easily unintentionally detached from threaded hole and the user iseasily injured. Furthermore, the spikes (41) are unable being attachedto the sole (40) with different orientations.

To overcome the shortcomings, the present invention provides a spikeassembly to obviate or mitigate the aforementioned problems.

SUMMARY OF THE INVENTION

An objective of the present invention is to provide a spike assemblythat can firmly attach a spike onto a sole at a particular orientationin convenient.

To achieve the objective, the spike assembly in accordance with thepresent invention has a spike connector and a spike.

The spike connector is mounted in a sole of a spiked shoe, and has abottom with a center, an inner periphery and an outer periphery, aconnecting hole, multiple notches and multiple fasteners.

The connecting hole is defined in the center of the bottom and has aninner surface and multiple threads formed on the inner surface, whereina specific thread has a width larger than that of the others. Themultiple notches are defined along the inner periphery of the spikeconnector. The multiple fasteners are formed along the outer peripheryof the spike connector, and each fastener has a buckling edge.

The spike has a head and a base. The head is adapted to contact with theground. The base has a top with a center, an inner periphery and anouter periphery, a threaded shank, multiple protrusions and multiplefasteners.

The threaded shank is formed on the center of the top and has an outersurface and multiple grooves formed on the outer surface. The multiplegrooves include a specific groove has a depth deeper than the others,and the depth of the specific threaded groove corresponds to the widthof the specific thread on the spike connector.

The multiple protrusions are formed along the inner periphery of the topof the base and correspond respectively to the multiple notches in thespike connector.

The multiple fasteners are formed along the outer periphery of the topof the base and correspond respectively to the fasteners of the spikeconnector, and each fastener has a buckling edge.

Only if the specific threaded groove opposites and embeds in thespecific thread of a corresponding connecting hole, the threaded shankcan be screwed into the connecting hole and let the spike connects tothe spike connector with a specific orientation.

The multiple protrusions respectively correspond to and engage with themultiple notches to provide an auxiliary fastening effect to keep thespike from detaching from the spike connection unintentionally.

Furthermore, the buckling edges of the fasteners on the spike and thespike connector abut against with each other to provide an extraretaining effect to hold the position of the spike and the spikeconnector in place.

Other objectives, advantages and novel features of the invention willbecome more apparent from the following detailed description when takenin conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded perspective view of a sole with spike assembliesin accordance with the present invention;

FIG. 2 is a bottom view of the sole with the spike assemblies in FIG. 1;

FIG. 3 is an exploded perspective view of a spike assembly in FIG. 1;

FIG. 4 is a bottom view of a spike connector of the spike assembly inFIG. 3;

FIG. 5 is a top view of a spike of the spike assembly in FIG. 3;

FIG. 6 is a cross sectional side plan view of the spike assembly in FIG.3;

FIG. 7 is a perspective bottom view of a conventional spiked shoe inaccordance with the prior art; and

FIG. 8 is an exploded perspective bottom view of another conventionalspiked shoe in accordance with the prior art.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

With reference to FIG. 1 to 6, a spike assembly in accordance with thepresent invention is attached to a bottom of a sole of a spiked shoe andcomprises a spike connector (10) and a spike (20). The spike connector(10) is securely mounted on the sole and has a bottom with a center, aninner periphery and an outer periphery, a connecting hole (11), multiplenotches (14), multiple fasteners (15) and an optional mark (12).

The connecting hole (11) is defined in the center of the bottom and hasan inner surface and multiple threads formed on the inner surface,wherein the multiple threads include a specific thread (13) having awidth larger than that of the others thread. The multiple notches (14)are defined along the inner periphery of the bottom of the spikeconnector (10). The multiple fasteners (15) are formed along the outerperiphery of the bottom of the spike connector (10), and each fastener(15) has a buckling edge (150). The mark (12) can be defined on aposition of the bottom of the spike connector (10) such that when thespike connector (10) be mounted in a sole, the orientation of a spike(20) connecting with the spike connector (10) can be ensured accordingto the mark (12).

The spike (20) has a head (21) and a base (22). The head (21) is adaptedto contact with the ground and can be formed into any specific type suchas a plank (as shown in FIG.7) or a taper (as shown in FIG.8). The base(22) has a top with a center, an inner periphery and an outer periphery,a threaded shank (23), multiple protrusions (25) and multiple fasteners(26).

The threaded shank (23) is formed on the center of the top and has anouter surface and multiple grooves formed on the outer surface, whereinthe multiple grooves include a specific groove (24) is deeper than theothers grooves, and the depth of the specific groove (24) iscorresponding to the width of the specific threaded (13) on the spikeconnector (10). Only if the specific threaded groove (24) opposites andembeds in the specific thread (13) of a corresponding connecting hole(11), the threaded shank (23) can be screwed into the connecting hole(11) and the spike (20) will connect to the spike connector (10) with aspecific orientation.

The multiple protrusions (25) are formed along the inner periphery ofthe top of the base (22) and respectively correspond to and engage withthe multiple notches (14) in the spike connector (10). With theengagements between the protrusions (25) and the notches (14), anauxiliary fastening effect is provided to keep the spike (20) fromdetaching from the spike connection (10) unintentionally.

The multiple fasteners (15) are formed along the outer periphery of thetop of the base (22) and correspond respectively to the fasteners (15)on the spike connector (10). Each fastener (15) has a buckling edge(150). The buckling edges (150) of the fasteners on the spike (20) andthe spike connector (10) can abut against with each other to provide anextra retaining effect to hold the position of the spike (20) and thespike connector (10) in place and to prevent the spike (20) from inverserotation relative to the spike connection (10).

In such an arrangement, the spike (20) is easily connected to the spikeconnector (10) at a specific orientation. Moreover, because the spike(20) and the spike connector (10) have multiple the grooves (24) and theteeth (13), such that to assemble and to disassemble the spike assemblyin accordance with the present invention is convenient and work saving.

Even though numerous characteristics and advantages of the presentinvention have been set forth in the foregoing description together withdetails of the structure and function of the invention, the disclosureis illustrative only. Changes may be made in detail especially inmatters of shape, size, and arrangement of parts within the principlesof the invention to the full extent indicated by the broad generalmeaning of the terms in which the appended claims are expressed.

1. A spike connector being mounted in a sole of a spiked shoe andcomprising a surface with a center, an inner periphery and an outerperiphery; and a connecting hole being defined in the center of thesurface and having an inner surface and multiple thread teeth formed onthe inner surface, wherein the multiple thread teeth include a specificthread having a width larger than that of the others.
 2. The spikeconnector as claimed in claim 1, wherein the spike connector further hasmultiple notches defined along the inner periphery of the surface of thespike connector.
 3. The spike connector as claimed in claim 1, whereinthe spike connector further has multiple fasteners formed along theouter periphery of the surface of the spike connector, and each fastenerhaving a buckling edge.
 4. The spike connector as claimed in claim 1,wherein the spike connector further has a mark being defined on aposition of the surface of the spike connector.
 5. A spike for the spikeconnector as claimed in claim 1, wherein the spike has a head; a baseconnected to the head and having a surface with a center, an innerperiphery and an outer periphery; a threaded shank formed on the centerof the surface and having an outer surface and multiple thread groovesformed in the outer surface, wherein the multiple thread grooves includea specific threaded groove having a depth deeper than that of theothers, and the depth of the specific threaded groove is adapted tocorrespond to a specific thread of the spike connector.
 6. The spike asclaimed in claim 5, wherein the spike further has multiple protrusionsformed along the inner periphery of the surface of the base.
 7. Thespike as claimed in claim 5, wherein the spike further has multiplefasteners formed along the outer periphery of the surface of the baseand each fastener having a buckling edge.
 8. The spike as claimed inclaim 5, wherein the head of the spike is formed into a plank.
 9. Thespike as claimed in claim 5, wherein the head of the spike is formedinto a taper.